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Separations
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Novel Polymeric Materials for Application in Liquid Phase Separations
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Novel Polymeric Materials for Application in Liquid Phase Separations

A special issue of Separations (ISSN 2297-8739).

Deadline for manuscript submissions: closed (30 April 2020) | Viewed by 4111

Special Issue Editor

Prof. Dr. Christopher Palmer

E-Mail Website
Guest Editor
Department of Chemistry and Biochemistry, College of Humanities and Sciences, University of Montana, 32 Campus Drive, Missoula, MT 59812, USA
Interests: electrokinetic chromatography; polymeric nanoparticles; environmental analytical chemistry
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Directed development and application of polymeric materials has resulted in significant progress in separation science and effective, efficient and selective separations of a wide variety of analytes. Polymeric materials have been utilized to effect separations by many and varied approaches, including as stationary phases and monoliths in liquid chromatography, gels and solubilized sieving matrices in capillary electrophoresis, coatings to minimize analyte adsorption and alter surface properties, as pseudo-stationary phases in electrokinetic chromatography, and as sorbents for selective extraction and recovery of analytes from complex matrices. This Special Issue will focus on recent advances in the development and application of polymeric materials for application in liquid phase separations. Authors are invited to submit research papers and/or review articles.

Prof. Dr. Christopher Palmer
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Separations is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2600 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • monoliths
  • templated polymers
  • nanoparticles
  • coatings
  • gels

Published Papers (1 paper)

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Research

9 pages, 1708 KiB  
Article
The Effect of Gamma Irradiation on the Ion Exchange Properties of Caesium-Selective Ammonium Phosphomolybdate-Polyacrylonitrile (AMP-PAN) Composites under Spent Fuel Recycling Conditions
by Alistair F. Holdsworth, Harry Eccles, Daniel Rowbotham, Gary Bond, Parthiv C. Kavi and Ruth Edge
Separations 2019, 6(2), 23; https://doi.org/10.3390/separations6020023 - 24 Apr 2019
Cited by 18 | Viewed by 3795
Abstract
The caesium radioisotopes 134Cs, 135Cs, and 137Cs are highly problematic medium-lived species produced during nuclear fission, due to their high radioactivity and environmental mobility. While many ion exchange materials can readily isolate Cs+ ions from neutral or basic aqueous [...] Read more.
The caesium radioisotopes 134Cs, 135Cs, and 137Cs are highly problematic medium-lived species produced during nuclear fission, due to their high radioactivity and environmental mobility. While many ion exchange materials can readily isolate Cs+ ions from neutral or basic aqueous solutions, only ammonium phosphomolybdate (AMP) functions effectively in acidic conditions, removing caesium even down to trace levels. Composites of AMP in a porous polymeric support such as polyacrylonitrile (PAN) can be used to selectively remove Cs+ ions from acidic aqueous decontamination liquors as well as other liquid wastes, and are promising for the isolation of Cs+ isotopes in spent fuel reprocessing. While both AMP and PAN have demonstrable acid stability, and PAN has known resistance to gamma radiation, AMP-PAN composites have received only a limited analysis of their physiochemical and ion exchange performance following irradiation. In this publication, we explore the effect of high levels of gamma irradiation on the ion exchange properties of AMP and AMP-PAN as a Cs+-selective adsorbent under spent fuel dissolver liquor concentrations and acidity. We demonstrate no significant reduction in performance with respect to uptake kinetics or capacity upon irradiation, abiding by the same absorption mechanism observed in the established literature. Full article
(This article belongs to the Special Issue Novel Polymeric Materials for Application in Liquid Phase Separations)
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